Three men were seriously injured in a clash among rockers in Mönchengladbach.
Police and prosecutors said on Wednesday that five suspects had been arrested.
Shots were also fired during the argument at the overland station.
A homicide detective is investigating an attempted homicide.
The three seriously injured between the ages of 22 and 33 years are not in mortal danger.
According to the information, witnesses heard shots on Tuesday evening.
At the site not far from the main train station, the alarmed police officers found a man bleeding heavily.
The alleged perpetrators initially fled.
However, there was an accident with a getaway vehicle not far from the scene of the crime.
Another injured person was in the car and was arrested.
The police initially gave no further information about the third person injured.
During the night, the police arrested a total of five suspects between the ages of 21 and 33.